新型三元混合制冷剂R32/R125/R161替代制冷剂R407C的实验研究  

Experimental study of ternary mixture R32/R125/R161 as alternative refrigerant to R407C

作　　者：韩晓红[1] 朱志伟[1] 孙洁[1] 董宇婷[1] 陈光明[1] 

机构地区：[1]浙江大学制冷与低温研究所,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2007年第2期337-341,共5页Journal of Zhejiang University：Engineering Science

基　　金：浙江省自然科学基金资助项目(Z105034)

摘　　要：在搭建的电量热器制冷剂性能测试台上,对三元混合制冷剂R32/R125/R161和制冷剂R407C进行了实验研究.R32/R125/R161的物性与R407C相似,且环境性能良好,其臭氧消耗潜能(ODP)值为零,其全球变暖潜能(GWP)值小于R407C.实验结果表明,在过冷度相同、冷凝温度不同的情况下,2种制冷剂的循环性能参数,如压缩机功耗、循环性能系数(COP)、单位体积制冷量、制冷量随蒸发温度的升高而增大,压比与排气温度随蒸发温度的升高而降低;在蒸发温度相同的情况下,采用R32/R125/R161的运行压比和压缩机功耗均低于R407C,COP、单位体积制冷量和制冷量大于R407C,排气温度略高于R407C.当冷凝温度相同时,2种制冷剂的COP、单位体积制冷量随过冷度的增大而增大.理论与实验分析表明,R32/R125/R161可以作为R407C的替代制冷剂直接使用.A ternary non-azeotropic mixture of R32/R125/R161 as an alternative refrigerant to R407C was performance （COP） increased, while pressure ratio and discharge temperature decreased with increasing evaporation temperature at different condensation temperature for R32/R125/R161 and R407C. At the same condensation temperature and evaporation temperature, volumetric refrigerating capacity, refrigerating capacity and COP of R25/R125/R161 were superior to those of R407C, and pressure ratio and power consumption of R25/R125/R161 were lower than those of R407C, and discharge temperature was slightly higher than that of R407C at the same working conditions. In addition, COP and volumetric refrigerating capacity increased with increasing subcooled temperature at the same condensation temperature. Therefore, the new refrigerant R32/R125/R161 can be considered as a promising alternative refrigerant to R407C.

关 键 词：替代制冷剂 氟乙烷 R407C 

分 类 号：O643.2[理学—物理化学]